linux/arch/arm/mach-imx/mach-pcm043.c
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   1/*
   2 *  Copyright (C) 2009 Sascha Hauer, Pengutronix
   3 *
   4 * This program is free software; you can redistribute it and/or modify
   5 * it under the terms of the GNU General Public License as published by
   6 * the Free Software Foundation; either version 2 of the License, or
   7 * (at your option) any later version.
   8 *
   9 * This program is distributed in the hope that it will be useful,
  10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 * GNU General Public License for more details.
  13 */
  14
  15#include <linux/types.h>
  16#include <linux/init.h>
  17
  18#include <linux/platform_device.h>
  19#include <linux/mtd/physmap.h>
  20#include <linux/mtd/plat-ram.h>
  21#include <linux/memory.h>
  22#include <linux/gpio.h>
  23#include <linux/smc911x.h>
  24#include <linux/interrupt.h>
  25#include <linux/delay.h>
  26#include <linux/i2c.h>
  27#include <linux/platform_data/at24.h>
  28#include <linux/usb/otg.h>
  29#include <linux/usb/ulpi.h>
  30
  31#include <asm/mach-types.h>
  32#include <asm/mach/arch.h>
  33#include <asm/mach/time.h>
  34#include <asm/mach/map.h>
  35
  36#include "common.h"
  37#include "devices-imx35.h"
  38#include "ehci.h"
  39#include "hardware.h"
  40#include "iomux-mx35.h"
  41#include "ulpi.h"
  42
  43static const struct fb_videomode fb_modedb[] = {
  44        {
  45                /* 240x320 @ 60 Hz */
  46                .name           = "Sharp-LQ035Q7",
  47                .refresh        = 60,
  48                .xres           = 240,
  49                .yres           = 320,
  50                .pixclock       = 185925,
  51                .left_margin    = 9,
  52                .right_margin   = 16,
  53                .upper_margin   = 7,
  54                .lower_margin   = 9,
  55                .hsync_len      = 1,
  56                .vsync_len      = 1,
  57                .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_SHARP_MODE | FB_SYNC_CLK_INVERT | FB_SYNC_CLK_IDLE_EN,
  58                .vmode          = FB_VMODE_NONINTERLACED,
  59                .flag           = 0,
  60        }, {
  61                /* 240x320 @ 60 Hz */
  62                .name           = "TX090",
  63                .refresh        = 60,
  64                .xres           = 240,
  65                .yres           = 320,
  66                .pixclock       = 38255,
  67                .left_margin    = 144,
  68                .right_margin   = 0,
  69                .upper_margin   = 7,
  70                .lower_margin   = 40,
  71                .hsync_len      = 96,
  72                .vsync_len      = 1,
  73                .sync           = FB_SYNC_VERT_HIGH_ACT | FB_SYNC_OE_ACT_HIGH,
  74                .vmode          = FB_VMODE_NONINTERLACED,
  75                .flag           = 0,
  76        },
  77};
  78
  79static struct mx3fb_platform_data mx3fb_pdata __initdata = {
  80        .name           = "Sharp-LQ035Q7",
  81        .mode           = fb_modedb,
  82        .num_modes      = ARRAY_SIZE(fb_modedb),
  83};
  84
  85static struct physmap_flash_data pcm043_flash_data = {
  86        .width  = 2,
  87};
  88
  89static struct resource pcm043_flash_resource = {
  90        .start  = 0xa0000000,
  91        .end    = 0xa1ffffff,
  92        .flags  = IORESOURCE_MEM,
  93};
  94
  95static struct platform_device pcm043_flash = {
  96        .name   = "physmap-flash",
  97        .id     = 0,
  98        .dev    = {
  99                .platform_data  = &pcm043_flash_data,
 100        },
 101        .resource = &pcm043_flash_resource,
 102        .num_resources = 1,
 103};
 104
 105static const struct imxuart_platform_data uart_pdata __initconst = {
 106        .flags = IMXUART_HAVE_RTSCTS,
 107};
 108
 109static const struct imxi2c_platform_data pcm043_i2c0_data __initconst = {
 110        .bitrate = 50000,
 111};
 112
 113static struct at24_platform_data board_eeprom = {
 114        .byte_len = 4096,
 115        .page_size = 32,
 116        .flags = AT24_FLAG_ADDR16,
 117};
 118
 119static struct i2c_board_info pcm043_i2c_devices[] = {
 120        {
 121                I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
 122                .platform_data = &board_eeprom,
 123        }, {
 124                I2C_BOARD_INFO("pcf8563", 0x51),
 125        },
 126};
 127
 128static struct platform_device *devices[] __initdata = {
 129        &pcm043_flash,
 130};
 131
 132static const iomux_v3_cfg_t pcm043_pads[] __initconst = {
 133        /* UART1 */
 134        MX35_PAD_CTS1__UART1_CTS,
 135        MX35_PAD_RTS1__UART1_RTS,
 136        MX35_PAD_TXD1__UART1_TXD_MUX,
 137        MX35_PAD_RXD1__UART1_RXD_MUX,
 138        /* UART2 */
 139        MX35_PAD_CTS2__UART2_CTS,
 140        MX35_PAD_RTS2__UART2_RTS,
 141        MX35_PAD_TXD2__UART2_TXD_MUX,
 142        MX35_PAD_RXD2__UART2_RXD_MUX,
 143        /* FEC */
 144        MX35_PAD_FEC_TX_CLK__FEC_TX_CLK,
 145        MX35_PAD_FEC_RX_CLK__FEC_RX_CLK,
 146        MX35_PAD_FEC_RX_DV__FEC_RX_DV,
 147        MX35_PAD_FEC_COL__FEC_COL,
 148        MX35_PAD_FEC_RDATA0__FEC_RDATA_0,
 149        MX35_PAD_FEC_TDATA0__FEC_TDATA_0,
 150        MX35_PAD_FEC_TX_EN__FEC_TX_EN,
 151        MX35_PAD_FEC_MDC__FEC_MDC,
 152        MX35_PAD_FEC_MDIO__FEC_MDIO,
 153        MX35_PAD_FEC_TX_ERR__FEC_TX_ERR,
 154        MX35_PAD_FEC_RX_ERR__FEC_RX_ERR,
 155        MX35_PAD_FEC_CRS__FEC_CRS,
 156        MX35_PAD_FEC_RDATA1__FEC_RDATA_1,
 157        MX35_PAD_FEC_TDATA1__FEC_TDATA_1,
 158        MX35_PAD_FEC_RDATA2__FEC_RDATA_2,
 159        MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
 160        MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
 161        MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
 162        /* I2C1 */
 163        MX35_PAD_I2C1_CLK__I2C1_SCL,
 164        MX35_PAD_I2C1_DAT__I2C1_SDA,
 165        /* Display */
 166        MX35_PAD_LD0__IPU_DISPB_DAT_0,
 167        MX35_PAD_LD1__IPU_DISPB_DAT_1,
 168        MX35_PAD_LD2__IPU_DISPB_DAT_2,
 169        MX35_PAD_LD3__IPU_DISPB_DAT_3,
 170        MX35_PAD_LD4__IPU_DISPB_DAT_4,
 171        MX35_PAD_LD5__IPU_DISPB_DAT_5,
 172        MX35_PAD_LD6__IPU_DISPB_DAT_6,
 173        MX35_PAD_LD7__IPU_DISPB_DAT_7,
 174        MX35_PAD_LD8__IPU_DISPB_DAT_8,
 175        MX35_PAD_LD9__IPU_DISPB_DAT_9,
 176        MX35_PAD_LD10__IPU_DISPB_DAT_10,
 177        MX35_PAD_LD11__IPU_DISPB_DAT_11,
 178        MX35_PAD_LD12__IPU_DISPB_DAT_12,
 179        MX35_PAD_LD13__IPU_DISPB_DAT_13,
 180        MX35_PAD_LD14__IPU_DISPB_DAT_14,
 181        MX35_PAD_LD15__IPU_DISPB_DAT_15,
 182        MX35_PAD_LD16__IPU_DISPB_DAT_16,
 183        MX35_PAD_LD17__IPU_DISPB_DAT_17,
 184        MX35_PAD_D3_HSYNC__IPU_DISPB_D3_HSYNC,
 185        MX35_PAD_D3_FPSHIFT__IPU_DISPB_D3_CLK,
 186        MX35_PAD_D3_DRDY__IPU_DISPB_D3_DRDY,
 187        MX35_PAD_CONTRAST__IPU_DISPB_CONTR,
 188        MX35_PAD_D3_VSYNC__IPU_DISPB_D3_VSYNC,
 189        MX35_PAD_D3_REV__IPU_DISPB_D3_REV,
 190        MX35_PAD_D3_CLS__IPU_DISPB_D3_CLS,
 191        /* gpio */
 192        MX35_PAD_ATA_CS0__GPIO2_6,
 193        /* USB host */
 194        MX35_PAD_I2C2_CLK__USB_TOP_USBH2_PWR,
 195        MX35_PAD_I2C2_DAT__USB_TOP_USBH2_OC,
 196        /* SSI */
 197        MX35_PAD_STXFS4__AUDMUX_AUD4_TXFS,
 198        MX35_PAD_STXD4__AUDMUX_AUD4_TXD,
 199        MX35_PAD_SRXD4__AUDMUX_AUD4_RXD,
 200        MX35_PAD_SCK4__AUDMUX_AUD4_TXC,
 201        /* CAN2 */
 202        MX35_PAD_TX5_RX0__CAN2_TXCAN,
 203        MX35_PAD_TX4_RX1__CAN2_RXCAN,
 204        /* esdhc */
 205        MX35_PAD_SD1_CMD__ESDHC1_CMD,
 206        MX35_PAD_SD1_CLK__ESDHC1_CLK,
 207        MX35_PAD_SD1_DATA0__ESDHC1_DAT0,
 208        MX35_PAD_SD1_DATA1__ESDHC1_DAT1,
 209        MX35_PAD_SD1_DATA2__ESDHC1_DAT2,
 210        MX35_PAD_SD1_DATA3__ESDHC1_DAT3,
 211        MX35_PAD_ATA_DATA10__GPIO2_23, /* WriteProtect */
 212        MX35_PAD_ATA_DATA11__GPIO2_24, /* CardDetect */
 213};
 214
 215#define AC97_GPIO_TXFS  IMX_GPIO_NR(2, 31)
 216#define AC97_GPIO_TXD   IMX_GPIO_NR(2, 28)
 217#define AC97_GPIO_RESET IMX_GPIO_NR(2, 0)
 218#define SD1_GPIO_WP     IMX_GPIO_NR(2, 23)
 219#define SD1_GPIO_CD     IMX_GPIO_NR(2, 24)
 220
 221static void pcm043_ac97_warm_reset(struct snd_ac97 *ac97)
 222{
 223        iomux_v3_cfg_t txfs_gpio = MX35_PAD_STXFS4__GPIO2_31;
 224        iomux_v3_cfg_t txfs = MX35_PAD_STXFS4__AUDMUX_AUD4_TXFS;
 225        int ret;
 226
 227        ret = gpio_request(AC97_GPIO_TXFS, "SSI");
 228        if (ret) {
 229                printk("failed to get GPIO_TXFS: %d\n", ret);
 230                return;
 231        }
 232
 233        mxc_iomux_v3_setup_pad(txfs_gpio);
 234
 235        /* warm reset */
 236        gpio_direction_output(AC97_GPIO_TXFS, 1);
 237        udelay(2);
 238        gpio_set_value(AC97_GPIO_TXFS, 0);
 239
 240        gpio_free(AC97_GPIO_TXFS);
 241        mxc_iomux_v3_setup_pad(txfs);
 242}
 243
 244static void pcm043_ac97_cold_reset(struct snd_ac97 *ac97)
 245{
 246        iomux_v3_cfg_t txfs_gpio = MX35_PAD_STXFS4__GPIO2_31;
 247        iomux_v3_cfg_t txfs = MX35_PAD_STXFS4__AUDMUX_AUD4_TXFS;
 248        iomux_v3_cfg_t txd_gpio = MX35_PAD_STXD4__GPIO2_28;
 249        iomux_v3_cfg_t txd = MX35_PAD_STXD4__AUDMUX_AUD4_TXD;
 250        iomux_v3_cfg_t reset_gpio = MX35_PAD_SD2_CMD__GPIO2_0;
 251        int ret;
 252
 253        ret = gpio_request(AC97_GPIO_TXFS, "SSI");
 254        if (ret)
 255                goto err1;
 256
 257        ret = gpio_request(AC97_GPIO_TXD, "SSI");
 258        if (ret)
 259                goto err2;
 260
 261        ret = gpio_request(AC97_GPIO_RESET, "SSI");
 262        if (ret)
 263                goto err3;
 264
 265        mxc_iomux_v3_setup_pad(txfs_gpio);
 266        mxc_iomux_v3_setup_pad(txd_gpio);
 267        mxc_iomux_v3_setup_pad(reset_gpio);
 268
 269        gpio_direction_output(AC97_GPIO_TXFS, 0);
 270        gpio_direction_output(AC97_GPIO_TXD, 0);
 271
 272        /* cold reset */
 273        gpio_direction_output(AC97_GPIO_RESET, 0);
 274        udelay(10);
 275        gpio_direction_output(AC97_GPIO_RESET, 1);
 276
 277        mxc_iomux_v3_setup_pad(txd);
 278        mxc_iomux_v3_setup_pad(txfs);
 279
 280        gpio_free(AC97_GPIO_RESET);
 281err3:
 282        gpio_free(AC97_GPIO_TXD);
 283err2:
 284        gpio_free(AC97_GPIO_TXFS);
 285err1:
 286        if (ret)
 287                printk("%s failed with %d\n", __func__, ret);
 288        mdelay(1);
 289}
 290
 291static const struct imx_ssi_platform_data pcm043_ssi_pdata __initconst = {
 292        .ac97_reset = pcm043_ac97_cold_reset,
 293        .ac97_warm_reset = pcm043_ac97_warm_reset,
 294        .flags = IMX_SSI_USE_AC97,
 295};
 296
 297static const struct mxc_nand_platform_data
 298pcm037_nand_board_info __initconst = {
 299        .width = 1,
 300        .hw_ecc = 1,
 301};
 302
 303static int pcm043_otg_init(struct platform_device *pdev)
 304{
 305        return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
 306}
 307
 308static struct mxc_usbh_platform_data otg_pdata __initdata = {
 309        .init   = pcm043_otg_init,
 310        .portsc = MXC_EHCI_MODE_UTMI,
 311};
 312
 313static int pcm043_usbh1_init(struct platform_device *pdev)
 314{
 315        return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_SINGLE_UNI |
 316                        MXC_EHCI_INTERNAL_PHY | MXC_EHCI_IPPUE_DOWN);
 317}
 318
 319static const struct mxc_usbh_platform_data usbh1_pdata __initconst = {
 320        .init   = pcm043_usbh1_init,
 321        .portsc = MXC_EHCI_MODE_SERIAL,
 322};
 323
 324static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
 325        .operating_mode = FSL_USB2_DR_DEVICE,
 326        .phy_mode       = FSL_USB2_PHY_UTMI,
 327};
 328
 329static bool otg_mode_host __initdata;
 330
 331static int __init pcm043_otg_mode(char *options)
 332{
 333        if (!strcmp(options, "host"))
 334                otg_mode_host = true;
 335        else if (!strcmp(options, "device"))
 336                otg_mode_host = false;
 337        else
 338                pr_info("otg_mode neither \"host\" nor \"device\". "
 339                        "Defaulting to device\n");
 340        return 1;
 341}
 342__setup("otg_mode=", pcm043_otg_mode);
 343
 344static struct esdhc_platform_data sd1_pdata = {
 345        .wp_gpio = SD1_GPIO_WP,
 346        .cd_gpio = SD1_GPIO_CD,
 347        .wp_type = ESDHC_WP_GPIO,
 348        .cd_type = ESDHC_CD_GPIO,
 349};
 350
 351/*
 352 * Board specific initialization.
 353 */
 354static void __init pcm043_init(void)
 355{
 356        imx35_soc_init();
 357
 358        mxc_iomux_v3_setup_multiple_pads(pcm043_pads, ARRAY_SIZE(pcm043_pads));
 359
 360        imx35_add_fec(NULL);
 361        platform_add_devices(devices, ARRAY_SIZE(devices));
 362        imx35_add_imx2_wdt();
 363
 364        imx35_add_imx_uart0(&uart_pdata);
 365        imx35_add_mxc_nand(&pcm037_nand_board_info);
 366
 367        imx35_add_imx_uart1(&uart_pdata);
 368
 369        i2c_register_board_info(0, pcm043_i2c_devices,
 370                        ARRAY_SIZE(pcm043_i2c_devices));
 371
 372        imx35_add_imx_i2c0(&pcm043_i2c0_data);
 373
 374        imx35_add_ipu_core();
 375        imx35_add_mx3_sdc_fb(&mx3fb_pdata);
 376
 377        if (otg_mode_host) {
 378                otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 379                                ULPI_OTG_DRVVBUS_EXT);
 380                if (otg_pdata.otg)
 381                        imx35_add_mxc_ehci_otg(&otg_pdata);
 382        }
 383        imx35_add_mxc_ehci_hs(&usbh1_pdata);
 384
 385        if (!otg_mode_host)
 386                imx35_add_fsl_usb2_udc(&otg_device_pdata);
 387
 388        imx35_add_flexcan1();
 389}
 390
 391static void __init pcm043_late_init(void)
 392{
 393        imx35_add_imx_ssi(0, &pcm043_ssi_pdata);
 394
 395        imx35_add_sdhci_esdhc_imx(0, &sd1_pdata);
 396}
 397
 398static void __init pcm043_timer_init(void)
 399{
 400        mx35_clocks_init();
 401}
 402
 403MACHINE_START(PCM043, "Phytec Phycore pcm043")
 404        /* Maintainer: Pengutronix */
 405        .atag_offset = 0x100,
 406        .map_io = mx35_map_io,
 407        .init_early = imx35_init_early,
 408        .init_irq = mx35_init_irq,
 409        .init_time = pcm043_timer_init,
 410        .init_machine   = pcm043_init,
 411        .init_late      = pcm043_late_init,
 412        .restart        = mxc_restart,
 413MACHINE_END
 414